分类目录归档：Oracle

最新版oracle dul工具

发表于 2023 年 3 月 5 日由惜分飞

oracle官方dul工具继续更新,现在已经更新到12.2.0.2.5版本,可以支持oracle 6及其以上的所有版本,是oracle数据库在极端情况下恢复利器

[oracle@xifenfei dul]$ ./dul

Data UnLoader: 12.2.0.2.5 - Internal Only - on Sun Mar  5 15:12:11 2023
with 64-bit io functions and the decompression option

Copyright (c) 1994 2023 Bernard van Duijnen All rights reserved.

 Strictly Oracle Internal Use Only


DUL: Warning: Could not open parameter file <init.dul>
DUL: Warning: Compatible is set to 11 Values can be 6|7|8|9|10|11|12|17|18
DUL: Warning: no parameter file means no logfile
DUL>

配置init.dul文件之后

[oracle@iZbp1hx0enix3hix1kvyrxZ dul]$ ./dul

Data UnLoader: 12.2.0.2.5 - Internal Only - on Sun Mar  5 15:22:26 2023
with 64-bit io functions and the decompression option

Copyright (c) 1994 2023 Bernard van Duijnen All rights reserved.

 Strictly Oracle Internal Use Only


Found db_id = 1588579327
Found db_name = ORCL
DUL> show datafiles;
ts# rf# start   blocks offs open  err file name
  0   1     0    97281    0    1    0 /u01/app/oracle/oradata/orcl/system01.dbf
  1   2     0   387841    0    1    0 /u01/app/oracle/oradata/orcl/sysaux01.dbf
  2   3     0    37761    0    1    0 /u01/app/oracle/oradata/orcl/undotbs01.dbf
  4   4     0     5761    0    1    0 /u01/app/oracle/oradata/orcl/users01.dbf
  7   5     0    16385    0    1    0 /u01/app/oracle/oradata/orcl/t_xifenfei01.dbf
DUL> bootstrap;
Probing file = 1, block = 520
. unloading table                BOOTSTRAP$
DUL: Warning: block number is non zero but marked deferred trying to process it anyhow
      59 rows unloaded
Reading BOOTSTRAP.dat 59 entries loaded
Parsing Bootstrap$ contents
Generating dict.ddl for version 11
 OBJ$: segobjno 18, file 1 block 240
 TAB$: segobjno 2, tabno 1, file 1  block 144
 COL$: segobjno 2, tabno 5, file 1  block 144
 USER$: segobjno 10, tabno 1, file 1  block 208
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$   86411 rows unloaded
. unloading table                      TAB$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335
    2904 rows unloaded
. unloading table                      COL$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335
   94714 rows unloaded
. unloading table                     USER$      88 rows unloaded
Reading USER.dat 88 entries loaded
Reading OBJ.dat 86411 entries loaded and sorted 86411 entries
Reading TAB.dat 2904 entries loaded
Reading COL.dat 94714 entries loaded and sorted 94714 entries
Reading BOOTSTRAP.dat 59 entries loaded

DUL: Warning: Recreating file "dict.ddl"
Generating dict.ddl for version 11
 OBJ$: segobjno 18, file 1 block 240
 TAB$: segobjno 2, tabno 1, file 1  block 144
 COL$: segobjno 2, tabno 5, file 1  block 144
 USER$: segobjno 10, tabno 1, file 1  block 208
 TABPART$: segobjno 591, file 1 block 4000
 INDPART$: segobjno 596, file 1 block 4040
 TABCOMPART$: segobjno 613, file 1 block 4176
 INDCOMPART$: segobjno 618, file 1 block 4216
 TABSUBPART$: segobjno 603, file 1 block 4096
 INDSUBPART$: segobjno 608, file 1 block 4136
 IND$: segobjno 2, tabno 3, file 1  block 144
 ICOL$: segobjno 2, tabno 4, file 1  block 144
 LOB$: segobjno 2, tabno 6, file 1  block 144
 COLTYPE$: segobjno 2, tabno 7, file 1  block 144
 TYPE$: segobjno 518, tabno 1, file 1  block 3464
 COLLECTION$: segobjno 518, tabno 2, file 1  block 3464
 ATTRIBUTE$: segobjno 518, tabno 3, file 1  block 3464
 LOBFRAG$: segobjno 624, file 1 block 4264
 LOBCOMPPART$: segobjno 627, file 1 block 4288
 UNDO$: segobjno 15, file 1 block 224
 TS$: segobjno 6, tabno 2, file 1  block 176
 PROPS$: segobjno 98, file 1 block 800
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$
DUL: Warning: Recreating file "OBJ.ctl"
   86411 rows unloaded
. unloading table                      TAB$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335

DUL: Warning: Recreating file "TAB.ctl"
    2904 rows unloaded
. unloading table                      COL$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335

DUL: Warning: Recreating file "COL.ctl"
   94714 rows unloaded
. unloading table                     USER$
DUL: Warning: Recreating file "USER.ctl"
      88 rows unloaded
. unloading table                  TABPART$     143 rows unloaded
. unloading table                  INDPART$     124 rows unloaded
. unloading table               TABCOMPART$       1 row  unloaded
. unloading table               INDCOMPART$       0 rows unloaded
. unloading table               TABSUBPART$      32 rows unloaded
. unloading table               INDSUBPART$       0 rows unloaded
. unloading table                      IND$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335
    4931 rows unloaded
. unloading table                     ICOL$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335
    7644 rows unloaded
. unloading table                      LOB$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335
    1031 rows unloaded
. unloading table                  COLTYPE$
DUL: Warning: Block has been marked soft corrupt
DUL: Error: While processing ts# 0 file# 1 block# 13335
    2565 rows unloaded
. unloading table                     TYPE$    2909 rows unloaded
. unloading table               COLLECTION$    1002 rows unloaded
. unloading table                ATTRIBUTE$   11328 rows unloaded
. unloading table                  LOBFRAG$       1 row  unloaded
. unloading table              LOBCOMPPART$       0 rows unloaded
. unloading table                     UNDO$      21 rows unloaded
. unloading table                       TS$       8 rows unloaded
. unloading table                    PROPS$      36 rows unloaded
Reading USER.dat 88 entries loaded
Reading OBJ.dat 86411 entries loaded and sorted 86411 entries
Reading TAB.dat 2904 entries loaded
Reading COL.dat 94714 entries loaded and sorted 94714 entries
Reading TABPART.dat 143 entries loaded and sorted 143 entries
Reading TABCOMPART.dat 1 entries loaded and sorted 1 entries
Reading TABSUBPART.dat 32 entries loaded and sorted 32 entries
Reading INDPART.dat 124 entries loaded and sorted 124 entries
Reading INDCOMPART.dat 0 entries loaded and sorted 0 entries
Reading INDSUBPART.dat 0 entries loaded and sorted 0 entries
Reading IND.dat 4931 entries loaded
Reading LOB.dat
DUL: Notice: Increased the size of DC_LOBS from 1024 to 8192 entries
 1031 entries loaded
Reading ICOL.dat 7644 entries loaded
Reading COLTYPE.dat 2565 entries loaded
Reading TYPE.dat 2909 entries loaded
Reading ATTRIBUTE.dat 11328 entries loaded
Reading COLLECTION.dat 1002 entries loaded
Reading BOOTSTRAP.dat 59 entries loaded
Reading LOBFRAG.dat 1 entries loaded and sorted 1 entries
Reading LOBCOMPPART.dat 0 entries loaded and sorted 0 entries
Reading UNDO.dat 21 entries loaded
Reading TS.dat 8 entries loaded
Reading PROPS.dat 36 entries loaded
Database character set is ZHS16GBK
Database national character set is AL16UTF16
DUL>

发表在 Oracle | 标签为 oracle dul, oracle dul 12c, oracle dul最新版 | 评论关闭

误删除asm disk导致磁盘组无法mount数据库恢复

发表于 2023 年 3 月 4 日由惜分飞

客户误删除asm disk两个lun（由于这个是这个存储的特殊性,删除lun之后,存储层面无法恢复出来对应的lun数据,导致客户彻底放弃了硬件层面恢复的可能性.）,导致asm磁盘组无法正常mount

SQL> ALTER DISKGROUP DATA MOUNT  /* asm agent *//* {1:27928:40938} */ 
NOTE: cache registered group DATA number=3 incarn=0x60fa38b1
NOTE: cache began mount (first) of group DATA number=3 incarn=0x60fa38b1
NOTE: Assigning number (3,0) to disk (/dev/rdisk/VD02_DBF)
NOTE: Assigning number (3,1) to disk (/dev/rdisk/VD03_DBF)
NOTE: Assigning number (3,2) to disk (/dev/rdisk/VD04_DBF)
NOTE: Assigning number (3,3) to disk (/dev/rdisk/VD05_DBF)
NOTE: Assigning number (3,4) to disk (/dev/rdisk/VD06_DBF)
Thu Dec 29 10:21:20 2022
NOTE: GMON heartbeating for grp 3
GMON querying group 3 at 29 for pid 29, osid 3770
NOTE: Assigning number (3,5) to disk ()
NOTE: Assigning number (3,6) to disk ()
GMON querying group 3 at 30 for pid 29, osid 3770
NOTE: cache dismounting (clean) group 3/0x60FA38B1 (DATA) 
NOTE: messaging CKPT to quiesce pins Unix process pid: 3770, image: oracle@db1 (TNS V1-V3)
NOTE: dbwr not being msg'd to dismount
NOTE: lgwr not being msg'd to dismount
NOTE: cache dismounted group 3/0x60FA38B1 (DATA) 
NOTE: cache ending mount (fail) of group DATA number=3 incarn=0x60fa38b1
NOTE: cache deleting context for group DATA 3/0x60fa38b1
GMON dismounting group 3 at 31 for pid 29, osid 3770
NOTE: Disk DATA_0000 in mode 0x7f marked for de-assignment
NOTE: Disk DATA_0001 in mode 0x7f marked for de-assignment
NOTE: Disk DATA_0002 in mode 0x7f marked for de-assignment
NOTE: Disk DATA_0003 in mode 0x7f marked for de-assignment
NOTE: Disk DATA_0004 in mode 0x7f marked for de-assignment
NOTE: Disk  in mode 0x7f marked for de-assignment
NOTE: Disk  in mode 0x7f marked for de-assignment
ERROR: diskgroup DATA was not mounted
ORA-15032: not all alterations performed
ORA-15040: diskgroup is incomplete
ORA-15042: ASM disk "6" is missing from group number "3" 
ORA-15042: ASM disk "5" is missing from group number "3" 
ERROR: ALTER DISKGROUP DATA MOUNT  /* asm agent *//* {1:27928:40938} */

这个客户应该有三个磁盘组存放数据文件,其中data磁盘组的7个磁盘被删除了2个lun,导致data磁盘组无法mount,客户希望尽可能恢复其中数据,对于这种情况,由于2个lun完全丢失,直接通过dul之类的工具拷贝asm数据文件恢复不可行(因为很多asm的元数据也会在丢失的lun里面,导致拷贝出来的数据文件异常太多,恢复效果会很差),对于这种情况采用asm disk header 彻底损坏恢复的恢复方法,尽可能的从block层面恢复出来所有可以恢复的数据块中的数据

由于这个其中涉及了system表空间(oracle损坏严重),结合客户几年前的一个system历史备份文件,恢复出来字典,然后尽可能的恢复数据文件,最终最大限度给客户恢复数据,让客户的损失降到最低.

发表在 Oracle ASM | 标签为 asm底层数据块恢复, asm无法mount恢复, ORA-15040 ORA-15042, 删除lun asm恢复 | 评论关闭

.eight加密数据库恢复

发表于 2023 年 3 月 4 日由惜分飞

有客户文件系统被加密,扩展名为:.id[4A434170-2803].[BobyWillson@gmx.com].eight,oracle数据库在其中

通过底层分区,确认该数据文件只是被加密破坏一点,通过自研的Oracle数据库文件加密勒索恢复工具处理后

直接open数据库成功

然后使用exp顺利导出数据

对于类似这种被加密的勒索的数据文件,我们可以实现比较好的恢复效果,如果此类的数据库(oracle,mysql,sql server)等被加密,需要专业恢复技术支持，请联系我们:
电话/微信:17813235971 Q Q:107644445 E-Mail:dba@xifenfei.com
系统安全防护措施建议：
1.多台机器，不要使用相同的账号和口令
2.登录口令要有足够的长度和复杂性，并定期更换登录口令
3.重要资料的共享文件夹应设置访问权限控制，并进行定期备份
4.定期检测系统和软件中的安全漏洞，及时打上补丁。
5.定期到服务器检查是否存在异常。
6.安装安全防护软件，并确保其正常运行。
7.从正规渠道下载安装软件。
8.对不熟悉的软件，如果已经被杀毒软件拦截查杀，不要添加信任继续运行。
9.保存良好的备份习惯，尽量做到每日备份，异地备份。

发表在勒索恢复 | 标签为 .eight, BobyWillson@gmx.com, dbf加密恢复, dmp加密恢复, oracle加密恢复 | 评论关闭

17813235971

QQ 咨询

分类目录归档：Oracle

最新版oracle dul工具

误删除asm disk导致磁盘组无法mount数据库恢复

.eight加密数据库恢复

文章分类

最近发表

分类目录归档：Oracle

最新版oracle dul工具

误删除asm disk导致磁盘组无法mount数据库恢复

.eight加密数据库恢复

标签云

文章分类

最近发表